Computer Cannot Find Operating System Error
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Compare Editions Store Download Support About Home > Partition Magic > Missing operating system 5 Perfect Solutions to Getting Missing Operating System Back Contents: Brief Introduction to Missing Operating System Error The Following 5 Issues Can Cause Operating System Missing The Following 5 Resolutions May Help You Get out of Missing https://www.partitionwizard.com/partitionmagic/missing-operating-system.html Operating System Error 1.Check If Hard Drive Is Detected by BIOS 2.Test Hard Disk to See http://www.thewindowsclub.com/missing-operating-system-not-found-windows Whether It Failed or Not 3.Set BIOS to Default State 4.Rebuild Master Boot Record 5.Set Correct Partition Active Related Articles Brief Introduction to Missing Operating System Error When you tried to start a Windows operating system, you may receive the error message Missing Operating System on the black screen. That’s a so annoying error since it will prevent you from entering Windows. Well operating system then, what’s the cause for this error and how can we get missing operating system back? These are what we are going to talk in this post. Tip: depending on the BIOS used by system, the error message could also be Operating System not Found. The Following 5 Issues Can Cause Operating System Missing Both hardware issues and software failures can make an operating system not found, and here we mainly list the following 5: 1.The basic input/output system (BIOS) operating system not does not detect the hard disk that installs Windows. 2.The hard disk failed either physically or logically. 3.Users make inappropriate or incorrect BIOS settings. 4.Windows Master Boot Record (MBR) located on the hard drive is damaged or corrupted. 5.The partition which saves Windows boot files is no longer active or users set wrong partition active. As long as one or some of these 5 issues are generated, users may receive the disturbing error message Missing Operating System or Operating System not Found. But fortunately, for each cause we have solution. Let’s see details. The Following 5 Resolutions May Help You Get out of Missing Operating System Error Since multiple issues can lead to the error, most users do not know how to start the repair. Actually, they had better start with checking hard drive for hardware failures and then deal with software issues since the latter should be done on the base of correct hardware condition. And the following 5 solutions are introduced in this order. PS. This is just a personal idea, and you can choose one of our methods depending on your actual situation. 1.Check If Hard Drive Is Detected by BIOS If the system disk isn’t recognized by BIOS, it cannot be used to read and write data. As a result, all files including Windows OS saved on the disk will be inaccessible. If you made dust clean or your computer suffered heavy shock bef
Not Found error in Windows RECOMMENDED: Click here to fix Windows errors and improve system performance Users may on rare occasions receive Missing Operating System or Operating System Not Found error screen while booting their Windows computer. If you frequently get these messages while booting Windows 10 / 8 / 7 / Vista, then this post will guide you in the proper direction. Missing Operating System Not Found In most cases, this happens when you install Windows Vista or later operating systems in conjunction with older operating systems. For example, Windows XP used Boot.ini and Vista onwards it was BCD Edit.exe located in Windows\System32 folder. There can be two scenarios here. Advertisement First you install Windows XP or prior operating systems and then install Windows 10. In this case, the BCD Editor may take over and remove boot.ini. This makes the computer believe that there is only one operating system installed and that is Windows 10. Such issues can be fixed by running BCD Editor (Boot Configuration Data Editor). Maybe you installed Windows 10 first and then you went on to install Windows XP. The boot loader of Windows XP is made default and you won't find Windows 10 in the list of operating systems. In worst case scenario, you won't find any operating system as the boot loader is corrupt due to conflict of both boot.ini and BCD.exe. This situation too, can be fixed using BCD Editor. You just need to know how to add the operating systems to the boot loader and most importantly, assign them each, a different drive letter. You will need to boot with the disk, and repair Windows. Here is what you can try. Boot the Windows 7 or Windows Vista DVD, choose Repair and then Open a Command Prompt window. Now enter the following commands one after the other and hit Enter after each: bootrec.exe /fixmbr bootrec.exe /fixboot bootrec.exe /rebuildbcd Reboot your Windows system. This should hopefully and have made your problem go away ! For more details see KB927392 and read this post on Bootmgr is Missing in Windows 8. RECOMMENDED: Click here to update all device drivers on your Windows PC Related Posts: Boot Configuration Data Editor in Windows OS Dual Boot Repair Tool: Repair Boot Configuration Data for Windows Advanced Visual BCD Editor & Boot Repair Tool for Windows Windows Live Esse